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st: re: output from mata:variance

From   Kit Baum <>
Subject   st: re: output from mata:variance
Date   Sat, 6 Mar 2010 14:42:14 -0500

No need for all this code:

//get this result w/o -mata-
stack mpg length , into(newvar) clear
su n, d
local varmpglength=r(Var)
di `varmpglength'

with Mata, all you need is

sysuse auto, clear
di vv

Kit Baum   |   Boston College Economics & DIW Berlin   |
                              An Introduction to Stata Programming  |
   An Introduction to Modern Econometrics Using Stata  |

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